Telephone attachment.



W. ZIMMERMAN.

TELEPHONE ATTACHMENT.

APPLICATION FILED M0. 4, I91].

1,288,790. Patented Dec. 24,1918.

, 3414mm (A William Zz'mlvzrman fzmm/w n; w. nwmuma. vlAsnmaroN n c WILLIAM ZIMMERMAN, 0F DETROIT, MICHIGAN.

TELEPHONE ATTACHMENT.

Specification of Letters Patent.

Patented Dec. 24:, 1918.

Application filed December 14, 1917. Serial No. 207,040.

1 0 all whom it may concern.-

Be it known that I, WILLIAM ZIMMERMAN, a citizen of the United States, residing at Detroit, in the county of W ayne and State of Michigan, have invented a new and useful Telephone Attachment, of which the following is a specification.

This invention relates to telephones and more particularly to auxiliary mouth-pieces for telephones.

It is the object of the invention to materially improve the efliciency of a telephone by providing an attachment for the transmitter thereof which will be comparatively simple and inexpensive to produce and which may be readily engaged and adjusted without requiring alteration of any of the parts of the telephone. In attaining this object an auxiliary mouth-piece is provided for attachment to the usual telephone mouth-piece to extend at one side thereof and substantially transverse thereto, said auxiliary mouth-piece being directly used by the person telephoning while the telephone mouthpiece comes only into indirect use.

The preferred embodiment of this invention is illustrated in the accompanying draw ing, wherein,

Figure 1 is a top view of the bracket employed to adjustably support the auxiliary mouth-piece.

Fig. 2 is a top view of a telephone equipped with said auxiliary mouth-piece.

Fig. 3 is a view of the same in side elevation.

Referring now to the various parts of the construction illustrated, 1 is the frame or body of a telephone, 2 the receiver, 3 the switch arm supporting the receiver, 4: the transmitter or sound-box, and 5 the mouthpiece. The construction thus far described is that of an ordinary telephone and constitutes no part of the present invention. The latter is in the nature of an attachment, which consists of an auxiliary mouth-piece 6 and two split clamping rings 7 and 8, the ends of which are pivotally connected at 9. The ring 7 is relatively large and is of a concavo-convex shape adapting it to embrace and be clamped securely upon the rim of the mouth-pie e 5. The smaller ring 8 embraces the smaller end of the auxiliary mouth-piece. In mounting the ring 7 upon the mouth-piece 5 the pivotal connection is located at one side of said mouth-piece so that its axis is vertical. Thus the auxiliary mouth-piece may be swung to its preferred position of use, as is shown in Figs. 2 and 3, in which position it lies forward of the mouth-piece 5 but at one side thereof, the axes of the two mouth-pieces being substantially transverse.

It is obvious that when the auxiliary mouthpiece is adjusted as shown and described, the sound waves do not directly impinge upon the diaphragm of the transmitter as in the ordinary telephone but spread laterally into the mouth-piece 5 after being emitted from the auxiliary mouth-piece, so as to have their original intensity consider ably diminished when they enter the sound box 4. The result is that the vibration to which the diaphragm is subjected is less violent and erratic than is the case where it is in direct alinement with the mouth of the person telephoning and consequently words are transmitted more distinctly and clearly than is the case where the ordinary telephone mouth-piece is used directly.

It is a further desirable feature of the invention that the position of the auxiliary mouth-piece avoids necessity for holding the telephone in a position obstructing the sight so that it becomes easier for the operator to write down any message as it is received over the telephone.

What I claim is:

1. A telephone attachment comprising an auxiliary mouth-piece and a. pair of pivotally connected split rings adapted to be clamped respectively upon the auxiliary mouth-piece and the ordinary mouth-piece of a telephone by adjustment of said pivotal connection.

2. A telephone attachment comprising an auxiliary mouth-piece and a pair of connected split clamping rings having their axes in an angular relation, one of said rings being clamped upon the auxiliary mouth-piece to mount the same, and the other being adapted to clamp upon the ordinary mouth piece of a telephone.

In testimony whereof I sign this specification.

WILLIAM ZIMMERMAN.

Copies of this patent may be obtained for five cents each. by addressing the "Commissioner of Patents. Washington, D. 0." 

